package Computer;
import java.io.*;
import java.util.*;
public class Goods {
    public static void main(String args[]) {
    	String filePath = "D:/Goods/Goods.txt";
    	File file = new File(filePath);
    	Scanner pr = null;
    	int count = 0;
    	double sum = 0;
    	try { double price = 0;
    	      pr = new Scanner(file);
    	      pr.useDelimiter("[^0123456789.]+");
    	      while(pr.hasNextDouble()) {
    	      price = pr.nextDouble();
    	      count++;
    	      sum = sum+price;
    	      
    	      System.out.println(price);
    	    }
              double aver = sum/count;
              String str = String.format("%.3f", aver);
              System.out.println("平均价格："+str);
    }
    catch (Exception exp) {
    	System.out.println(exp);
    }
    }
}